Film winding tension adjusting mechanism

Abstract

The utility model discloses a film rolling tension adjusting mechanism which comprises a main body mechanism and an adjusting mechanism, the main body mechanism comprises a base, a left plate, a right plate and a limiting rod, the left plate and the right plate are connected to the base in a sliding mode, and the limiting rod is installed in a gap between the tops of the left plate and the right plate and used for limiting the opening distance of the left plate and the right plate. One end of the limiting rod is fixedly installed on the left plate, the other end of the limiting rod is inserted into the right plate, and the rod part, penetrating through the right plate, of the limiting rod is in threaded connection with a limiting nut. According to the film flattening device, the left plate and the right plate are connected to the base in a sliding mode, the limiting rods are arranged for connection, the distance between the left plate and the right plate can be expanded or reduced to change the tension, and therefore a film can be rapidly flattened; and the tension can be slightly changed by slightly adjusting the position of the guide roller, so that the device can select fine adjustment or normal adjustment of the tension according to needs, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of film winding tension adjustment, in particular to a film winding tension adjustment mechanism. Background Art

[0002] After the film is processed, it needs to be rolled up. The adjustment process of the tension adjustment mechanism of the existing rolling device is complicated. It is not possible to choose fine-tuning or normal adjustment according to needs, which is very troublesome. Therefore, when fine-tuning is required, there is a high probability that the film will break, which poses a certain risk. Therefore, a film rolling tension adjustment mechanism is proposed. Utility Model Content

[0003] The utility model aims to solve one of the technical problems existing in the prior art or related technology.

[0004] To this end, the technical solution adopted in this utility model is:

[0005] A film winding tension adjustment mechanism comprises a main mechanism and an adjustment mechanism, wherein the main mechanism comprises a base, a left plate and a right plate slidably connected to the base, a limit rod installed in the top gap of the left plate and the right plate and used to limit the opening distance of the left plate and the right plate, one end of the limit rod is fixedly installed on the left plate, and the other end of the limit rod is plugged into the right plate, the limit rod passes through the rod portion of the right plate and is threadedly connected to a limit nut, and a limited length plate is arranged at the top of the right plate outside the limit nut, the adjustment mechanism comprises a feed guide roller rotatably connected to the bottom of the left plate, a fixed guide roller arranged at the top of the left plate, a movable guide roller slidably connected to the right plate, a winding roller connected to the bottom position of the right plate, and a support seat assembled in the middle of the upper surface of the base, the bottom of the movable guide roller is threadedly connected with a bolt, the bolt is clamped on the side of the right plate, a middle balance guide roller is rotatably connected to the support seat, the outer end of the bottom of the middle balance guide roller is fixedly connected with a gear, the side of the gear is clamped with a locking tooth, the bottom of the locking tooth is connected with a limit frame, and the bottom of the locking tooth is sleeved with a tension spring.

[0006] Preferably, a bidirectional screw is clamped inside the base, thread blocks are threadedly connected to both ends of the bidirectional screw, and a rotating wheel is fixedly connected to the middle of the bidirectional screw.

[0007] Preferably, the bottoms of the left plate and the right plate are fixedly connected to two threaded blocks respectively.

[0008] Preferably, a rear plate is installed at the rear side of the position where the base is installed to support the seat, a balancing groove is opened on the rear plate, the middle part of the middle balancing guide roller is slidably connected in the balancing groove, and a spring is arranged in the balancing groove.

[0009] Preferably, a slide groove is provided at the position where the right plate is slidably connected to the movable guide roller, and the end of the bolt passes through the right plate and is arranged in the slide groove.

[0010] By adopting the above technical solution, the beneficial effects achieved by the utility model are as follows:

[0011] In the utility model, the left plate and the right plate are slidably connected to the base, and a limit rod is set for connection, so that the distance between the left plate and the right plate can be expanded or reduced to change the tension, so that the film can be quickly flattened. At the same time, a movable guide roller is set to connect with the movable guide roller, so that the position of the movable guide roller can be fine-tuned to slightly change the tension, so that the device can choose to fine-tune or normally adjust the tension as needed, thereby improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view schematic diagram of an embodiment of the utility model;

[0013] Figure 2 This is a schematic diagram of a support base according to an embodiment of the utility model.

[0014] Reference numerals:

[0015] 110, base; 111, bidirectional screw; 112, rotating wheel; 113, threaded block; 120, left plate; 130, right plate; 140, limiting rod; 141, limiting nut; 142, length limiting plate;

[0016] 210, feed guide roller; 220, fixed guide roller; 230, movable guide roller; 231, slide groove; 232, bolt; 240, middle balance guide roller; 241, support seat; 242, gear; 243, locking tooth; 244, limit frame; 245, tension spring; 250, winding roller; 260, rear plate; 261, balance groove. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in combination with specific implementation methods and with reference to the accompanying drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0018] A film winding tension adjustment mechanism provided by some embodiments of the utility model will be described below in conjunction with the accompanying drawings. Embodiment 1

[0019] Combination Figure 1-2As shown, a film winding tension adjustment mechanism provided by the utility model includes a main body mechanism and an adjustment mechanism, the main body mechanism includes a base 110, a left plate 120 and a right plate 130 slidably connected to the base 110, and a limit rod 140 installed in the top gap of the left plate 120 and the right plate 130 and used to limit the opening distance of the left plate 120 and the right plate 130. A bidirectional screw 111 is clamped inside the base 110, and thread blocks 113 are threadedly connected at both ends of the bidirectional screw 111, and a rotating wheel 112 is fixedly connected to the middle of the bidirectional screw 111. The bottoms of the left plate 120 and the right plate 130 are respectively connected to the left plate 120 and the right plate 130. The two threaded blocks 113 are fixedly connected, one end of the limit rod 140 is fixedly installed on the left plate 120, and the other end of the limit rod 140 is inserted into the right plate 130, the limit rod 140 passes through the rod portion of the right plate 130 and is threadedly connected to the limit nut 141, and a limited length plate 142 is arranged at the top of the right plate 130 outside the limit nut 141, and the adjustment mechanism includes a feed guide roller 210 rotatably connected to the bottom of the left plate 120, a fixed guide roller 220 arranged at the top of the left plate 120, a movable guide roller 230 slidably connected to the right plate 130, and a winding roller 250 connected to the bottom of the right plate 130, A support seat 241 is assembled on the middle part of the upper surface of the base 110, and a bolt 232 is threadedly connected to the bottom of the movable guide roller 230, and the bolt 232 is clamped on the side of the right plate 130. A slide groove 231 is provided at the position where the right plate 130 is slidably connected to the movable guide roller 230, and the end of the bolt 232 passes through the right plate 130 and is arranged in the slide groove 231. A middle balancing guide roller 240 is rotatably connected to the support seat 241, and a gear 242 is fixedly connected to the outer end of the bottom of the middle balancing guide roller 240, and a locking tooth 243 is clamped on the side of the gear 242, and the bottom of the locking tooth 243 is connected to a limited position frame 244, and the bottom of the locking tooth 243 A tension spring 245 is sleeved, and a rear plate 260 is installed on the rear side of the position where the support seat 241 is installed on the base 110. A balancing groove 261 is opened on the rear plate 260. The middle part of the middle balancing guide roller 240 is slidably connected in the balancing groove 261, and a spring is arranged in the balancing groove 261. An elastic force is provided by the spring inside the balancing groove 261, so that the middle balancing guide roller 240 maintains the balance of the middle part when no force is applied. Once the force balance is broken and the locking tooth 243 is unlocked, the middle balancing guide roller 240 quickly deviates to one side to reach a new balance, thereby avoiding film breakage caused by excessive tension and improving the reliability of the device.

[0020] Specifically, the rotation of the rotating wheel 112 can drive the base 110 to rotate, thereby driving the threaded blocks 113 connected to the two sides of the base 110 to move, increasing or reducing the distance between the two threaded blocks 113, thereby driving the distance between the left plate 120 and the right plate 130 thereon to change in the same manner, thereby achieving a large-scale adjustment of the tension, so that the film can be quickly tensioned, completing rapid adjustment, and improving the practicability of the device.

[0021] The working principle and use process of the utility model are as follows: first, the film to be rolled up is introduced by the feed guide roller 210, and is guided by the fixed guide roller 220, the movable guide roller 230 and the middle balance guide roller 240 to enter the winding roller 250 for winding up. During the winding process, the rotating wheel 112 can be rotated to adjust the distance between the left plate 120 and the right plate 130, so as to tension the film and make it flat. When the tensioning force needs to be fine-tuned, the movable guide roller 230 is rotated to pull the movable guide roller 230 away from the fixed guide roller 220 to fine-tune the tension. When the tension balance is required, the middle balance guide roller 240 is pulled to release the lock on the gear 242, so that the middle balance guide roller 240 can be offset in the direction of the balancing force. After reaching the balance, the tension spring 245 is released so that the locking tooth 243 locks the position of the gear 242. Finally, the winding roller 250 after winding is completed is disassembled and replaced with a new winding roller 250 and installed.

[0022] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A film winding tension adjustment mechanism, characterized in that: include: Principal institutions and regulatory agencies; The main body mechanism comprises a base (110), a left plate (120) and a right plate (130) slidably connected to the base (110), and a limit rod (140) installed in the top gap of the left plate (120) and the right plate (130) and used to limit the opening distance of the left plate (120) and the right plate (130); One end of the limit rod (140) is fixedly mounted on the left plate (120), and the other end of the limit rod (140) is plugged into the right plate (130); the limit rod (140) passes through the rod portion of the right plate (130) and is threadedly connected to a limit nut (141); and a limit length plate (142) is provided at a position outside the limit nut (141) at the top of the right plate (130); The adjustment mechanism comprises a feed guide roller (210) rotatably connected to the bottom of the left plate (120), a fixed guide roller (220) arranged on the top of the left plate (120), a movable guide roller (230) slidably connected to the right plate (130), a winding roller (250) connected to the bottom of the right plate (130), and a support seat (241) mounted in the middle of the upper surface of the base (110); The bottom of the movable guide roller (230) is threadedly connected with a bolt (232), and the bolt (232) is clamped on the side of the right plate (130); A middle balancing guide roller (240) is rotatably connected to the support seat (241); a gear (242) is fixedly connected to the outer end of the bottom of the middle balancing guide roller (240); a locking tooth (243) is clamped on the side of the gear (242); the bottom of the locking tooth (243) is connected to a limit position frame (244); and a tension spring (245) is sleeved on the bottom of the locking tooth (243).

2. A film winding tension adjustment mechanism according to claim 1, characterized in that: A bidirectional screw rod (111) is clamped inside the base (110), thread blocks (113) are threadedly connected at both ends of the bidirectional screw rod (111), and a rotating wheel (112) is fixedly connected at the middle of the bidirectional screw rod (111).

3. A film winding tension adjustment mechanism according to claim 1, characterized in that: The bottoms of the left plate (120) and the right plate (130) are respectively fixedly connected to two threaded blocks (113).

4. A film winding tension adjustment mechanism according to claim 1, characterized in that: A rear plate (260) is installed at the rear side of the position where the support seat (241) is installed on the base (110), a balancing groove (261) is opened on the rear plate (260), the middle part of the middle balancing guide roller (240) is slidably connected in the balancing groove (261), and a spring is arranged in the balancing groove (261).

5. The film winding tension adjustment mechanism according to claim 1, characterized in that: A slide groove (231) is provided at a position where the right plate (130) is slidably connected to the movable guide roller (230), and an end of the bolt (232) passes through the right plate (130) and is disposed in the slide groove (231).

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